Interior and Exterior Angles of Polygons

Front

What is the sum of the interior angles of a triangle?

Back

180°

Front

What is the formula to calculate the sum of the interior angles of a polygon with n sides?

Back

(n - 2) × 180°

Front

How do you calculate the measure of each interior angle of a regular polygon?

Back

Divide the sum of the interior angles by the number of sides: (n - 2) × 180° / n.

Front

What is the sum of the exterior angles of any polygon?

Back

360°.

Front

What is the relationship between interior and exterior angles of a polygon?

Back

Interior angle + Exterior angle = 180°.

Front

What is a regular polygon?

Back

A polygon with all sides and angles equal.

Front

How many sides does a hexagon have?

Back

6 sides.

Front

If one interior angle of a regular polygon is 120°, how many sides does it have?

Back

6 sides.

Front

What is the measure of each exterior angle of a regular polygon with 8 sides?

Back

45°.

Front

What is the measure of each interior angle of a regular pentagon?

Back

108°.